/// <summary>
/// Tries to perform the operation from finding the operator in the mapping.
/// </summary>
public static Boolean TryPerformOverFind(Value left, Value right, BinaryOperatorMappingList mapping, out Value value)
{
var least = default(Func<Value, Value, Value>);
for (var i = 0; i != mapping.Count; i++)
{
var hit = mapping[i].IsMapping(left, right);
if (hit == MapHit.Direct)
{
value = mapping[i].Map(left, right);
return true;
}
else if (hit == MapHit.Indirect)
{
least = mapping[i].Map;
}
}
if (least != null)
{
value = least(left, right);
return true;
}
value = null;
return false;
}
public override Value Perform(Value argument)
{
if (argument is ScalarValue)
{
return argument;
}
if (argument is MatrixValue)
{
var m = argument as MatrixValue;
if (m.DimensionX == 1)
{
return GetVectorMin(m.GetColumnVector(1));
}
else if (m.DimensionY == 1)
{
return GetVectorMin(m.GetRowVector(1));
}
else
{
var M = new MatrixValue(1, m.DimensionX);
for (var i = 1; i <= m.DimensionX; i++)
{
M[1, i] = GetVectorMin(m.GetColumnVector(i));
}
return M;
}
}
throw new YAMPOperationInvalidException("min", argument);
}
/// <summary>
/// Performs the evaluation of the dot operator.
/// </summary>
/// <param name="left">The left value.</param>
/// <param name="right">The right value.</param>
/// <returns>The result of the operation.</returns>
public override Value Perform(Value left, Value right)
{
if (left is NumericValue == false)
{
throw new YAMPOperationInvalidException(Op, left);
}
if (right is NumericValue == false)
{
throw new YAMPOperationInvalidException(Op, right);
}
if (left is MatrixValue && right is MatrixValue)
{
var l = (MatrixValue)left;
var r = (MatrixValue)right;
return Dot(l, r);
}
else if (left is MatrixValue && right is ScalarValue)
{
var l = (MatrixValue)left;
var r = (ScalarValue)right;
return Dot(l, r);
}
else if (left is ScalarValue && right is MatrixValue)
{
var l = (ScalarValue)left;
var r = (MatrixValue)right;
return Dot(l, r);
}
return _top.Perform(left, right);
}
/// <summary>
/// Performs the function - maps each entry of a matrix to a matrix.
/// </summary>
/// <param name="argument">Either a Scalar or a Matrix.</param>
/// <returns>The scalar or matrix.</returns>
public override Value Perform(Value argument)
{
if (argument is ScalarValue)
{
return GetValue((ScalarValue)argument);
}
else if (argument is MatrixValue)
{
var A = (MatrixValue)argument;
var M = new MatrixValue(A.DimensionY, A.DimensionX);
for (var j = 1; j <= A.DimensionY; j++)
{
for (var i = 1; i <= A.DimensionX; i++)
{
M[j, i] = GetValue(A[j, i]);
}
}
return M;
}
else if (argument is ArgumentsValue)
{
throw new YAMPArgumentNumberException(Name, ((ArgumentsValue)argument).Length, 1);
}
throw new YAMPOperationInvalidException(Name, argument);
}
public override Value Perform(Value left, Value right)
{
//NH:Check with Florian: Why was it using RightDivideOperator.Mapping ?!
//Was it being used as an "alias" to it?
//return PerformOverFind(left, right, RightDivideOperator.Mapping);
return PerformOverFind(left, right, Mapping);
}
public override Value Perform(Value left, Value right)
{
var step = 1.0;
var explicitStep = false;
var start = 0.0;
var end = 0.0;
var all = false;
if (left is ScalarValue)
{
start = (left as ScalarValue).Re;
}
else if (left is RangeValue)
{
var m = left as RangeValue;
start = m.Start;
step = m.End;
explicitStep = true;
}
else
{
throw new YAMPOperationInvalidException(":", left);
}
if (right is ScalarValue)
{
end = (right as ScalarValue).Re;
}
else if (right is RangeValue)
{
var m = right as RangeValue;
step = m.Start;
end = m.End;
all = m.All;
explicitStep = true;
}
else if (right is StringValue)
{
all = (right as StringValue).Value.Equals(End);
}
else
{
throw new YAMPOperationInvalidException(":", left);
}
if (!all && !explicitStep && end < start)
{
step = -1.0;
}
if (all)
{
return new RangeValue(start, step);
}
return new RangeValue(start, end, step);
}
public override Value Perform(Value left, Value right)
{
if (left is StringValue || right is StringValue)
{
return new ScalarValue(left.ToString(Context) != right.ToString(Context));
}
return base.Perform(left, right);
}
public override Value Perform(Value left)
{
if (left is ScalarValue)
{
return (left as ScalarValue).Clone();
}
else if (left is MatrixValue)
{
return (left as MatrixValue).Transpose();
}
throw new YAMPOperationInvalidException(".'", left);
}
Value Assign(SymbolExpression left, Value value, IDictionary<String, Value> symbols)
{
if (symbols.ContainsKey(left.SymbolName))
{
symbols[left.SymbolName] = value.Copy();
}
else
{
Context.AssignVariable(left.SymbolName, value.Copy());
}
return value;
}
public SetValue Function(SetValue set1, Value id)
{
if (id is MatrixValue)
{
set1.RemoveElements((id as MatrixValue).ToArray());
}
else
{
set1.Set.Remove(new SetValue.ValueWrap(id));
}
return set1;
}
public override Value Perform(Value left)
{
if (left is ScalarValue)
{
return (left as ScalarValue).Conjugate();
}
else if (left is MatrixValue)
{
return (left as MatrixValue).Adjungate();
}
throw new YAMPOperationInvalidException("'", left);
}
public Value Handle(Expression left, Expression right, Value value, IDictionary<String, Value> symbols)
{
var obj = left.Interpret(symbols) as ObjectValue;
var symbol = right as SymbolExpression;
if (obj == null || symbol == null)
{
throw new YAMPOperationInvalidException(Op);
}
var key = new StringValue(symbol.SymbolName);
return obj.Perform(Context, key, value);
}
public override Value Perform(Value left, Value right)
{
if (left is NumericValue == false)
{
throw new YAMPOperationInvalidException(";", left);
}
if (right is NumericValue == false)
{
throw new YAMPOperationInvalidException(";", right);
}
return MatrixValue.Create(left).AddRow(right);
}
public void Function(StringValue type, StringValue property, Value value)
{
switch(type.Value.ToLower())
{
case "plot":
Function(property, value);
break;
case "series":
Context.SetDefaultProperty("series", property.Value, value);
break;
default:
throw new YAMPPropertyMissingException(type.Value, new[] { "Plot", "Series" });
}
}
public override Value Perform(Value left, Value right)
{
Value ret;
if (!TryPerformOverFind(left, right, Mapping, out ret))
{
if (left is StringValue || right is StringValue)
{
return new ScalarValue(left.ToString(Context) != right.ToString(Context));
}
return base.Perform(left, right);
}
return ret;
}
public override Value Perform(Value value)
{
if (value is ScalarValue)
{
var scalar = (ScalarValue)value;
return -scalar;
}
else if (value is MatrixValue)
{
var matrix = (MatrixValue)value;
return -matrix;
}
throw new YAMPOperationInvalidException(Op, value);
}
/// <summary>
/// Changes a given property to a certain value using the available value converter.
/// </summary>
/// <param name="series">The series (0..(n-1)) that should be changed.</param>
/// <param name="parent">The object that should contain the property.</param>
/// <param name="property">The name of the property (property needs to have a converter specified).</param>
/// <param name="value">The new value of the property.</param>
public static void AlterSeriesProperty(Object parent, Int32 series, String property, Value value)
{
var type = parent.GetType();
var props = type.GetProperties();
foreach (var prop in props)
{
var idx = prop.GetIndexParameters();
if (idx.Length == 1)
{
var method = prop.GetGetMethod();
var s = method.Invoke(parent, new Object[] { series });
AlterProperty(s, property, value);
break;
}
}
}
/// <summary>
/// Changes a given property to a certain value using the available value converter.
/// </summary>
/// <param name="parent">The object that should contain the property.</param>
/// <param name="name">The name of the property (property needs to have a converter specified).</param>
/// <param name="value">The new value of the property.</param>
public static void AlterProperty(Object parent, String name, Value value)
{
var type = parent.GetType();
var props = type.GetProperties();
var available = new List<String>();
foreach (var prop in props)
{
var attrs = prop.GetCustomAttributes(typeof(ValueConverterAttribute), false);
if (attrs.Length != 0)
{
available.Add(prop.Name);
if (prop.Name.Equals(name, StringComparison.OrdinalIgnoreCase))
{
var content = default(Object);
var possible = new List<String>();
foreach (ValueConverterAttribute attr in attrs)
{
possible.Add(attr.Type);
if (attr.CanConvertFrom(value))
{
content = attr.Convert(value);
break;
}
}
if (content == null)
{
throw new YAMPArgumentWrongTypeException(value.Header, possible.ToArray(), "set");
}
prop.SetValue(parent, content, null);
return;
}
}
}
throw new YAMPPropertyMissingException(name, available.ToArray());
}
public static Value Abs(Value argument)
{
if (argument is ScalarValue)
{
return new ScalarValue(((ScalarValue)argument).Abs());
}
else if (argument is MatrixValue)
{
var m = argument as MatrixValue;
if (m.IsVector)
{
return m.Abs();
}
return m.Det();
}
throw new YAMPOperationInvalidException("abs", argument);
}
public override Value Perform(Value value)
{
if (value is ScalarValue)
{
var scalar = (ScalarValue)value;
return new ScalarValue(scalar.IsFalse);
}
else if (value is MatrixValue)
{
var A = (MatrixValue)value;
var M = new MatrixValue(A.DimensionY, A.DimensionX);
for (var j = 1; j <= A.DimensionY; j++)
for (var i = 1; i <= A.DimensionX; i++)
M[j, i] = new ScalarValue(A[j, i].IsFalse);
return M;
}
return new ScalarValue(false);
}
protected Value Assign(Expression left, Value value, IDictionary<String, Value> symbols)
{
if (left is SymbolExpression)
{
return Assign((SymbolExpression)left, value, symbols);
}
else if (left is ContainerExpression)
{
var tree = (ContainerExpression)left;
if (tree.Operator == null)
{
return Assign(tree.Expressions[0], value, symbols);
}
else if (tree.Operator is ArgsOperator)
{
var ix = (ArgsOperator)tree.Operator;
return ix.Handle(tree.Expressions[0], value, symbols);
}
else if (tree.Operator is MemberOperator)
{
var mo = (MemberOperator)tree.Operator;
return mo.Handle(tree.Expressions[0], tree.Expressions[1], value, symbols);
}
else if (tree.IsSymbolList)
{
var vars = tree.GetSymbols().ToArray();
return HandleMultipleOutputs(value, vars, symbols);
}
else
{
throw new YAMPAssignmentException(Op);
}
}
return value;
}
public override Value Perform(Value argument)
{
if (argument is ScalarValue)
{
return argument;
}
else if (argument is MatrixValue)
{
var m = argument as MatrixValue;
if (m.DimensionX == 1)
{
return GetVectorMax(m.GetColumnVector(1));
}
else if (m.DimensionY == 1)
{
return GetVectorMax(m.GetRowVector(1));
}
return Function(m);
}
throw new YAMPOperationInvalidException("max", argument);
}
/// <summary>
/// Scalar / Scalar
/// </summary>
/// <param name="left">Must be a scalar.</param>
/// <param name="right">Must be a scalar.</param>
/// <returns>The new scalar.</returns>
public static ScalarValue Divide(Value left, Value right)
{
var l = (ScalarValue)left;
var r = (ScalarValue)right;
return l / r;
}
public override Value Perform(Value left, Value right)
{
return PerformOverFind(left, right, Mapping);
}
Value SetValue(StringValue key, Value value)
{
var name = key.Value;
_values[name] = value;
return value;
}
/// <summary>
/// Scalar ^ Scalar
/// </summary>
/// <param name="basis">Must be a scalar.</param>
/// <param name="exponent">Must be a scalar.</param>
/// <returns>The new scalar.</returns>
public static ScalarValue Pow(Value basis, Value exponent)
{
var l = (ScalarValue)basis;
var r = (ScalarValue)exponent;
return l.Pow(r);
}
internal void SerializeID(MemoryStream mem, BaseType id)
{
SerializeValue(mem, id);
}
public ValueWrap(BaseType id)
{
_id = id;
}
/// <summary>
/// Scalar % Scalar
/// </summary>
/// <param name="left">Must be a scalar.</param>
/// <param name="right">Must be a scalar.</param>
/// <returns>The new scalar.</returns>
public static ScalarValue Mod(Value left, Value right)
{
var l = (ScalarValue)left;
var r = (ScalarValue)right;
return l % r;
}
/// <summary>
/// Scalar * Scalar
/// </summary>
/// <param name="left">Must be a scalar.</param>
/// <param name="right">Must be a scalar.</param>
/// <returns>The new scalar.</returns>
public static ScalarValue Multiply(Value left, Value right)
{
var l = (ScalarValue)left;
var r = (ScalarValue)right;
return l * r;
}
internal void DeserializeID(MemoryStream mem)
{
_id = DeserializeValue(mem);
}
/// <summary>
/// Scalar - Scalar
/// </summary>
/// <param name="left">Must be a scalar.</param>
/// <param name="right">Must be a scalar.</param>
/// <returns>The new scalar.</returns>
public static ScalarValue Subtract(Value left, Value right)
{
var l = (ScalarValue)left;
var r = (ScalarValue)right;
return l - r;
}
/// <summary>
/// Method used by YAMP to set a value to an object.
/// </summary>
/// <param name="context">The context where this is happening.</param>
/// <param name="argument">The key of the value to retrieve.</param>
/// <param name="value">The value to set.</param>
/// <returns>The value that has been set.</returns>
public Value Perform(ParseContext context, Value argument, Value value)
{
var key = argument as StringValue;
if (key == null)
{
throw new YAMPArgumentWrongTypeException(argument.Header, "String", String.Empty);
}
return SetValue(key, value);
}
